Communication Interface Module Replacement
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
If the OnStar® communication interface module is replaced, the setup procedure needs to be performed. Please refer to OnStar Reconfiguration (without TIS2web Gen 3 and prior) or OnStar Reconfiguration (with TIS2web Gen 4 and later) .